All the concern about growth hormones injected into cows isn’t warranted, AAP says. The hormone doesn’t affect humans and there isn’t much of a difference in the level of estrogen in milk from cows that were injected with hormone versus those that were not. As Petersen reports from an AAP convention this week in New Orleans:

Pediatricians said growth hormone given to cows doesn’t affect humans. “Ingestion of milk from estrogen-treated cows appears to be safe for children,” they said, adding that there doesn’t seem to be much difference in the sex-hormone concentrations in organic and conventional milk. Instead, to reduce exposure, drink skim. The more fat content in milk, whether organic or not, the higher the concentration of estradiol, the report found.